I was on the Spree, but I think both boats are very similar. Follow the instructions of the divemasters, crew and captains and you will be fine. If I can make one recommendation to anyone diving the Flower Gardens, that recommendation would be to get EANx Certified and dive EAN. These are deep dives and on air your bottom time will be limited. Diving nitrox may limit your max depth a bit, but it will extend your overall bottom time significantly. You have to really watch your depth. You can get very deep without realizing it. The boat sets a limit of 130' on the first dive and 100' for every dive after that. You don't want to exceed those depths by even a foot as you will be sitting out for awhile. There is plenty to see well above those depths. The mix was EAN32 on all but one of my dives when the mix was EAN33. My deepest dive was 91'. Take a compass, as doing out and backs from the mooring line is the best way to find the boat again. We got a great laugh out of watching divers from the Fling pop up a hundred yards or more from the boat and need to have the dingy go get them. I must say, no one on the Spree had to be retrieved during my trip, so we all got good laughs watching the Fling retrieve it's divers. Otherwise, just your normal dive gear. Remember, there are no spare parts on board, so bring your save a dive kit. I watched one diver sit out the last 2 dives because his high pressure hose decided to develop a balloon and leak. So it's not a bad idea to have a spare regulator hose, low pressure hose and high pressure hose, plus the other little things you might need to "save your dive".
